RCE in Phoenix Contact Fl Nat 2008

CVE-2026-22317

A command injection vulnerability in the device’s Root CA certificate transfer workflow allows a high-privileged attacker to send crafted HTTP POST requests that result in arbitrary command execution on the underlying Linux OS with root pr…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.000 (9.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-22317?
CVE-2026-22317 is a high-severity vulnerability in Phoenix Contact Fl Nat 2008, classified under Command Injection. CVSS score: 7.2/10. Published 2026-03-18.
How severe is CVE-2026-22317?
High severity. CVSS v3 base score is 7.2 out of 10.